“One day in August 1965, while backpacking in the vicinity of California’s Minaret Mountains, retired physician Dr Robert W. Denton from Bishop, California, assisted a Mexican farm worker in hauling his mule out of a muddy bog at Hemlock Crossing near the bank of the San Joaquin River, and as the mule struggled free its flailing hooves uncovered a large bowl-shaped object in the mud. When Denton examined it, he found that it was a calvarium – the top and rear portion of a skull – which looked humanoid, but unusual in shape and size.”